I am having issues with this card:

SAPPHIRE 100351SR Radeon HD 7970 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card OC with Boost

Same issue, does not want to boot up

Out of curiosity, have you tried to flash the BIOS to A09?

I was having similar trouble, but the new BIOS worked for me.

I did...  But for some reason it still doesn't want to detect the video card. 

I have the xps 8500,  running on windows 7. 

16 gb memory, core i7 processor with ssd 240gb boot drive.  Originally i had the 1gb radeon 7570. 

Video card does not get detected, screen didnt turn on, had to use vga cable from motherboard

Also, the fan turned on on the video card when i turned on the computer. 

Assuming that you have both of the 6 pin power connected, those are the symptoms of a video Bios issue..........

blank screen and the fans spinning and the machine still working off the onboard video and the original HD 7570.

You can verify the card works by trying it in a different machine but if the fan is working you would assume that it's getting power and likely a working card.

Wondering if any of the other 3GB cards on the market work in the XPS 8500.  It says it requires minimum of 500w PSU, which is the same as some of the 7870 cards which are working so wouldn't think it was a power supply issue.  I read a review that measured at idle this card was pulling 106 watts and that the average with 6 games that were tested was 357 watts.  Not quite as power efficient as the HD 7870 (101w and 283w) and the GTX 660ti (106w and 305w) but it should still boot up.

Would try to do what others suggest and contact Sapphire on their forums or call Support directly to see if they have an upgraded Bios.   SInce it's a newer 7000 series card, it should still be supported.

Let us know how it turns out.

I am running a EVGA Superclocked GTX 660 on mine.  Stock PSU, with raid 1 drives, and SSD cache accelerating the raid 1 set.  Runs like a champ, and according to watt meter whole system pulls no more than 250-300 watts.

Graphic card manufacturer and model number: EVGA GTX 660Ti

EVGA SuperClocked 02G-P4-3662-KR GeForce GTX 660 Ti 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card

Bios:  A09

Operating System:  W7 Ultimate x64 Service Pack 1

Power supply manufacturer if not Dell 460w PSU :  Corsair CMPSU -850TX

Compatible:  Works Fine, this card needs two power connectors, had to get two longer SATA cables to route over and behind the GPU

Original card with system that worked:  Radeon HD 7570

Thank you for the very fast response.

I was very worried about the Power supply but you set my mind at ease. I know I could of probably gone higher but 750w is plenty for web browsing and MMO gaming.

You read my mind on the video card, I assumed if the 680 and 690 work and were verified, the 670 would work too.

However without it being specifically mentioned I still worry :)

I just bought my Dell XPS 8500

i7 3770 3.4 ghz and 8 Gigs of DDR3 @ 1600, everything else is stock to an XPS 8500.

I bought Corsair 750W Power Supply : http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

I'm considering upgrading the Graphics card to a 670 GTX 2 Gig 256 Bit. I've read this thread thoroughly and never have seen mention of it.

I've seen the 660, 660TI, 680, and 690 mentioned.

Can anyone confirm if a 670 GTX 2 Gig 256 Bit PCI 3.0 Express Card will work with this system?

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130782

Any help on the 670 GTX compatibility would be great, thank you!

I just bought my Dell XPS 8500 i7 3770 3.4 ghz and 8 Gigs of DDR3 @ 1600, everything else is stock to an XPS 8500. I bought Corsair 750W Power Supply : http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

So, that Corsair modular cable 750w PowerSupply fits and works perfectly, right? Good choice ... that's the exact one I would have used also.

What's nice about that Corsair (other than the power and cables) is the fan is variable speed. The machine will be quiet at idle (like the original Dell PS). Plus, it will likely never run at over 70% power level, which is a good thing.

I can't think of a reason the nVidia 670 would not work, but it's good to get a verified recommendation (like you are doing for users with that PS). Also, if the 680 works, the 670 is pretty much a sure-thing.

Have to ask for clarification.

Can anyone confirm if a 670 GTX 2 Gig 256 Bit PCI 3.0 Express Card will work with this system?

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130782

What is the specific video card you used with part #?

I plan of getting an XPS 8500 with either Windows 7 Home or Pro, 16GB Dual Channel DDR3 1600MHz - 4 DIMMs, a 1TB 7200 RPM SATA Hard Drive 6.0 Gb/s, and I plan on upgrading the GPU to a GeForce GTX 660 2GB from a AMD Radeon HD 7570 1GB GDDR5.

Though according to the last comment It doesn't seem as if I need to upgrade the power supply, which is good. But I need to keep track if the BIOS is A09. Is this accurate?

Also, I never understood why on the customize options for the XPS 8500 with Windows 7 lists the NVIDIA GeForce GT 620 1GB DDR3 as the cheapest option when it states that it's only for Windows 8 here: www.dell.com/.../fs

1. I think that what the OP means is that it is best to upgrade to A09. So yes, you should.

2. No, 460W is more than enough for a GTX 660. If it can even support a GTX 660 Ti, then that means Dell's PSUs are actually quite decent.

3. For Win 8 means certified for Windows 8, not ONLY for Win 8.

Lastly, good choice of GPU! Just wondering, what brand might you get? I actually don't think Asus's DirectCU coolers can fit in

the XPS 8500 without removing stuff, so count out cards longer than 10 inch...